Spring seat



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' SPRING SEAT Filed May 27, 1918 2 Sheets-Sheet l 2 Sheets-Sheet 2 y J. KRAMER ET AL SPRING SEAT Filed May 2v. 1918 pril 1 5 1924.

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Patented pr., l5, i924.

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i, FENT JULIUS KRAMER ANI) ANTON SCHMIDT, F CHICAGO, ILLINOIS, ASSIGNORS TO PULL- IVIAN COTJCI-I COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SPRING SEAT.

Application filed May 27,

To @ZZ whom t may concern.'

Be it known that we, JULiUs K AMER and ANTON SCHMIDT, citizens ot the United States of America, and residents ot Chicago, county ont Cook, and State ot Illinois, have invented certain new and useful Improvements in Spring Seats, ot which the tollowing is a specification.

This invention relates mainly to convertible seating devices, and particularly to the trame, lsprings and upholstering of seats, such as are employed, tor instance, in rotaryseat sofa. beds ot the Holmes and Bostrorn type, shown in U. S. Patent No. 848,305

where, in the main illustrative embodiment ot the drawings, the yielding part is mounted within a peripheral wooden trarne of rectangular shape so that the front edge is hard and unyielding.

Heretotore much attention has been devoted to the design of seats tor sofa beds, but owing to the very limited depth of space available for the upholstering of such seats, especially of the rotary style, they have usually been somewhat less yielding than the best practice demands. This is especially the case where the turning axis is near the center of the seat, and where the lower edge of the front panel ot the seat must be high enough to clear the tloor in overturning` the seat forwardly as required in some terms.

kThe main objects of this invention are to provide an improved form ot rigid seat trame of shallow construction, especially in trent, and to so arrange the springs and upholstering as to project well above the edges ot the trame both at the sides and in front and thus provide a sott yielding seat, not only atthe center but also at and including the edges. o Further objects are to provide an improved form ot structural steel seat frame of simple design and great strength adapted for compact storage and ready assemblage ot parts; and to provide an improved arrangement oit and means for mounting the upholstering springs.

In the accompanying drawings, Fig. 1 is a section of a sota bed .in the closed position, embodying a seat constructed in accordance with the principles of this invention; Fig. 2 illustrates the same construction in open position; Fig. 3 is a plan ot one corner of the metal spring part of the seat before the upholstering is applied; Fig. l is a detail of a part of the seat frame and supporting 1918. Serial No. 236,752.

wires; Fig. 5 is a detailV section showing the yielding trontedges ot the upholstered part; Fig. 6 is a side view of part or" the seat and the bed bottom support; and Fig. 7 is a section talren on the line 7 7 of Fig. 6.

In the illustrative embodiment shown in the drawings-the sofa bed as a whole comprises a relatively stationary trame 1 and a rotary seat 2 mounted turnably on and secured to frame ends 8 which are secured detachably to the back part 3, and as usual in sofa beds of the general type here shown, the seat is secured demountably in pivotal relation to the trame ends.

Said seat 2 is provided on it-s under side with a toldable, sectional bed bottom 6, also constructed and arranged as customary in rotary-seat sofa beds. rlhe usual locking device 7 is also provided tor securing the seat against rotation in its bed position and tor securing the sections in folded relation when the device is converted to its sofa torni.

The present invention relates particularly to the structure of the seat trame proper 8 which is a part of seat 2, the unhampered yielding character ot the cushion part which includes the springs 9 and upholstering 10 and the peculiar relation of said parts whereby a hard edge is avoided.

The seat frame consists mainly ot a rigid peripheral member including front and back rails and double end rails. The front rail is in the form ot an angle bar to which is secured a plate or panel 16, the upper et ge ot which is flush with the horizontal flange ot said bar, and the bach rail is in the 'torni ot an angle bar 17 to which is rigidly secured a tubular support or bracletl, the ends 18 ot which extend downward and somewhat rearward to support the short middle or connecting bed section 19 pivot 20. Each ot the Ydouble end rails ot' said seat-trame consists o'l a pair of angle bars 21 and 22 disposed in spaced relation one above the other and secured rigidly together by means ot connecting blocks or bars 23 and 24. The bar 23 is provided with a part 23 extending forward and upward when the seat is inverted for cooperation with the arms 18 to support the middle or connecting section, as shown in Fig. 6. The arm 23 has an upwardly facing notch 23 to receive the middle section pivot.

The front rail 15 and panel 1G secured thereto are somewhat lower than the back lil rail, so that the front ends of the end rails are wholly above and rest upon the trout angle bar and the back rail 17 is in alinement with the upper bar 21 of the end rail as shown in Fig. 1, the end rails being substantially horizontal in their seat position as here shown.

In order to support the upholstering and springs a horizontal network 27 of heavy wires is strung between the horizontal flanges on the lower side of 'the lower angle bars 22 of the end rails, and said network is also connected to the front angle bar 15. The rear endsk of the wires extending backward from the front angle bar are bent upward and secured to the back rail 17. The plurality of coiled upholstering springs 9 are mounted upon said wire network. The upper ends of the springs are fastened together and secured in a denite relation by a heavy peripheral wire 31 or the lil-:e which is somewhat yielding; additional cross wires 32 also being carried by said peripheral *ire whereby a suitable bearing is provided for the upper ends of said springs. By this construction there is provided in a most practical and durable form a yielding edge for the seat both at the front and at the sides as will be apparent from Figs. l, S and 5.

The upholstering 10 is applied to the seat as shown in Fig. 1 in such manner as to provide a neat and finished appearance as will be understood. The rear edge of the upholstering is attached to the baclr rail 17 and the front edge extends downward over the upper peripheral wire 80 and is secured to the upper edge of the front panel 16.

The locking device 7 comprises a plurality of upright rods, the upper ends ot which are bent horizontally to engage the outer rail 38 of the outer section when the bent part is swung over said rail to secure the. folded relation of the sections; to release the sections the bent end is turned out ot engaging position.

The operation for converting the device to a bed is as follows: The operator overturns the seat as shown in Fig. 1 by lifting the front edge and throwing it backward to the position shown in Fig. 2. The forwardly projecting handle of the lock 7 is then turned sidewise so as to release the forward section. The bed bottom is unfolded by grasping the toot-rail 38 and swinging same forward to the position shown in Fig. 2, leg being swung downward into position automatically by this operation, and the inner section 6 being caused to ride upward on the lifting cani plate 46, the short connecting section 16 being pivotcd centrally on the supports 18 and 23.

The reverse of -the foregoing operation serves to convert the device back to its sofa form.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit olE the invention as detined by thel following claims.

`We claim:

1. An upholstered sofa seat having a separate metal supporting frame comprising end rails, a front rail secured atthe lower side oi the end rails, a rear rail at the upper side of the end rail, and springs interposed between the trarne and the upliolstering.

2. A sofa seat-frame comprising a trout rail and a back rail, and at each end a pair of end rails disposed one over the other` the ends of the front rail and the ends of the back rail being secured to the corresponding' ends ot the lower and upper end rails respectively, and means for securing each pair of end rails in fixed relation to each other.

3. An upholstered sofa seat having a. sep arate rectangular metal frame including end rails, connecting front and rear rails secured at the bottom and top respectively of the end rails, and a front panel -tor the seat secured directly at its top to the front rail and below the level of the end rails.

4. An upholstered spring sola seat for bed davenports, comprising a separate metal frame having end rails and connecting front and rear rails. the front rail beingattached to the underside of the end rails7 and the rear rail being attached to the upper side of the end rails leaving an unobstructed v space below the rear rail and the lower level of the end rails.

The combination with an upholstered spring seat including a metal frame having end, front and rear rails, the front and'rear rails being attached respectively above and below the end rails7 of a front panel attached to the front rail below the lower level ol the end rails, and a supporting meinber attached to the rear rail and offset therefrom, the attached portion being entirely above the lower level of the end rails.

Signed at Chicago this 24th day oit May 1918.

JULIUS KRAMER. ANTON SCHMDT. 

